US2404442A - Agricultural tractor - Google Patents

Description

July 23, 1946.

v H. HUTCHINGS AGRICULTURAL TRACTOR Filed April 17, 1945 Patented July 23, 1946 UNITED STATES PATENT OFFICE AGRICULTURAL TRACTOR Herschel Hutchings, Lubbock, Tex. Application April 17, 1945, Serial No. 588,775

1 Claim. 1

This invention relates to an improved agricultural tractor of that kind wherein provision is made so that the operator may be situated in a position from whence he may View the ground between and immediately ahead of the tractor rear wheels.

Heretofore, tractors of the above kind have been of the frameless type including a bod supported on a rear axle housing structure and offset to one side of the longitudinal center line of the tractor proper, and an operators seat supported on the rear axle housing structure and located to the other side of the center line. This type of construction, besides being complicated, only permits a view of the ground to the latter side of the center line immediately ahead of the rear wheels.

The primary object of the present invention, therefore, is to provide a tractor of simple construction embodying an open frame supporting a power plant at its forward end centrally between the front tractor wheels a rear axle housing structure supporting the rear nd of the fram and including a differential assembly offset to one side of the longitudinal center line of the tractor, a transmission assembly secured to the differential assembly and the adjacent side of the frame and offset to said one side of the center line, a longitudinally disposed propeller shaft offset to said one side of the center line and directly connected at its rear end to the drive shaft of the transmission assembly, a gearing assembly operatively connecting the forward end of the propeller shaft with the drive shaft of the power plant and offset laterally to said one side of the center line, and an operators seat supported on the rear axle housing structure centrally between the rear tractor wheels, whereby the operator may view the ground directl along said center line immediately ahead of the rear wheels. 7

The exact nature of the present invention will become apparent from the following description when considered in connection with the accompanying drawing.

In the drawing:

Figure 1 is a view partly in top plan and partly in horizontal section, of a tractor embodying the present invention.

Figure 2 is an enlarged transverse section taken on line 2-2 of Figure 1.

Referring in detail to th drawing, the illustrated form of the present tractor includes side frame rails 5 and 5a, and supported at their forward ends on a front axle 6 having front steering and supporting wheels 1 and supported at their rear ends by a rear axle housing structure 8 including a pair of transversely spaced rear drive wheels 9 and a differential assembly In offset to one side of the longitudinal center line a of the tractor proper. A power plant lj is supported by the forward ends of frame rails 5 and 5a centrall between the wheels I, and a transmission assembly I2 is secured to the differential assembly l0 and the adjacent side frame rail 5 said transmission assembly being offset laterally to said one side of the center line a and operatively associated with the assembly ID. A longitudinal propeller shaft I3 is offset to said one side of the center line a and has its rear end directly connected to the drive shaft of the transmission assembly l2.

A gearing assembly l4 operativel connects the forward end of propeller shaft IS with the drive shaft l5 of power plant H and is offset laterally to said one side of the center line a. The assembly l4 includes a casing l6 secured at I! to rail 5.

An operators seat [8 is supported on the structure 8 centrally between the rear tractor wheels 9, and it will be apparent that the operator may view the ground directly along the center line a between the rails 5 and 5a immediately ahead of the rear wheels 9.

The construction is comparatively simple, avoids the need for a complicated body construction, and effectivel provides for center vision or view of the ground along the center line a between the power plant and the rear axle housing structure.

Minor changes may be made in the specific construction shown and described, such as fall within the scope of the invention as claimed.

What I claim is:

An agricultural tractor including an open frame havin side rails and provided with front steering and supportin wheels, a power plant supported by the forward end of the frame centrally between said wheels, a rear axle housi structure supporting the rear end of the frame and including rear drive wheels and a differential assembly offset to one side of the longitudinal center line of the tractor, a transmission assembly secured to the differential assembly and offset to said one side of said center line and mounted on the adjacent side rail of the frame, a longitudinal propeller shaft offset to said one side of the center line and connected at its rear end to the drive shaft of said transmission assembly, and a gearing assembly offset to said one side of the center line and mounted on said adjacent side rail, said gearing assembly operatively connecting the front end of the propeller shaft to the power plant, and a drivers seat at the rear of the tractor, the space between the power plant and the rear axle housing structure and between the propeller shaft and the other side rail of the frame being substantially unobstructed so that the HERSCHEL Humanities

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